Adam & Steve (movie, 2005)

Adam and Steve are two gay youths who have a one-night stand that ends embarrassingly. Nearly two decades later, Adam, now a Manhattan tour guide, and Steve, a psychiatrist, meet again -- but neither remembers the other from years before. The two begin dating, even playing matchmaker for their friends Michael and Rhonda, but their promising relationship hits a major snag when Adam and Steve finally recall their past connection.